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      1 // Copyright 2008 the V8 project authors. All rights reserved.
      2 // Redistribution and use in source and binary forms, with or without
      3 // modification, are permitted provided that the following conditions are
      4 // met:
      5 //
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      8 //     * Redistributions in binary form must reproduce the above
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     11 //       with the distribution.
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     14 //       from this software without specific prior written permission.
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     26 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     27 
     28 // Tests handling of flags for regexps.
     29 
     30 // We should now allow duplicates of flags.
     31 // (See http://code.google.com/p/v8/issues/detail?id=219)
     32 
     33 // Base tests: we recognize the basic flags
     34 
     35 function assertFlags(re, global, multiline, ignoreCase) {
     36   var name = re + " flag: ";
     37   (global ? assertTrue : assertFalse)(re.global, name + "g");
     38   (multiline ? assertTrue : assertFalse)(re.multiline, name + "m");
     39   (ignoreCase ? assertTrue : assertFalse)(re.ignoreCase, name + "i");
     40 }
     41 
     42 var re = /a/;
     43 assertFlags(re, false, false, false)
     44 
     45 re = /a/gim;
     46 assertFlags(re, true, true, true)
     47 
     48 re = RegExp("a","");
     49 assertFlags(re, false, false, false)
     50 
     51 re = RegExp("a", "gim");
     52 assertFlags(re, true, true, true)
     53 
     54 // Double i's
     55 
     56 re = /a/ii;
     57 assertFlags(re, false, false, true)
     58 
     59 re = /a/gii;
     60 assertFlags(re, true, false, true)
     61 
     62 re = /a/igi;
     63 assertFlags(re, true, false, true)
     64 
     65 re = /a/iig;
     66 assertFlags(re, true, false, true)
     67 
     68 re = /a/gimi;
     69 assertFlags(re, true, true, true)
     70 
     71 re = /a/giim;
     72 assertFlags(re, true, true, true)
     73 
     74 re = /a/igim;
     75 assertFlags(re, true, true, true)
     76 
     77 
     78 re = RegExp("a", "ii");
     79 assertFlags(re, false, false, true)
     80 
     81 re = RegExp("a", "gii");
     82 assertFlags(re, true, false, true)
     83 
     84 re = RegExp("a", "igi");
     85 assertFlags(re, true, false, true)
     86 
     87 re = RegExp("a", "iig");
     88 assertFlags(re, true, false, true)
     89 
     90 re = RegExp("a", "gimi");
     91 assertFlags(re, true, true, true)
     92 
     93 re = RegExp("a", "giim");
     94 assertFlags(re, true, true, true)
     95 
     96 re = RegExp("a", "igim");
     97 assertFlags(re, true, true, true)
     98 
     99 // Tripple i's
    100 
    101 re = /a/iii;
    102 assertFlags(re, false, false, true)
    103 
    104 re = /a/giii;
    105 assertFlags(re, true, false, true)
    106 
    107 re = /a/igii;
    108 assertFlags(re, true, false, true)
    109 
    110 re = /a/iigi;
    111 assertFlags(re, true, false, true)
    112 
    113 re = /a/iiig;
    114 assertFlags(re, true, false, true)
    115 
    116 re = /a/miiig;
    117 assertFlags(re, true, true, true)
    118 
    119 
    120 re = RegExp("a", "iii");
    121 assertFlags(re, false, false, true)
    122 
    123 re = RegExp("a", "giii");
    124 assertFlags(re, true, false, true)
    125 
    126 re = RegExp("a", "igii");
    127 assertFlags(re, true, false, true)
    128 
    129 re = RegExp("a", "iigi");
    130 assertFlags(re, true, false, true)
    131 
    132 re = RegExp("a", "iiig");
    133 assertFlags(re, true, false, true)
    134 
    135 re = RegExp("a", "miiig");
    136 assertFlags(re, true, true, true)
    137 
    138 // Illegal flags - flags late in string.
    139 
    140 re = /a/arglebargleglopglyf;
    141 assertFlags(re, true, false, false)
    142 
    143 re = /a/arglebargleglopglif;
    144 assertFlags(re, true, false, true)
    145 
    146 re = /a/arglebargleglopglym;
    147 assertFlags(re, true, true, false)
    148 
    149 re = /a/arglebargleglopglim;
    150 assertFlags(re, true, true, true)
    151 
    152 // Case of flags still matters.
    153 
    154 re = /a/gmi;
    155 assertFlags(re, true, true, true)
    156 
    157 re = /a/Gmi;
    158 assertFlags(re, false, true, true)
    159 
    160 re = /a/gMi;
    161 assertFlags(re, true, false, true)
    162 
    163 re = /a/gmI;
    164 assertFlags(re, true, true, false)
    165 
    166 re = /a/GMi;
    167 assertFlags(re, false, false, true)
    168 
    169 re = /a/GmI;
    170 assertFlags(re, false, true, false)
    171 
    172 re = /a/gMI;
    173 assertFlags(re, true, false, false)
    174 
    175 re = /a/GMI;
    176 assertFlags(re, false, false, false)
    177